What was found
IAW AD 2013-23-04 AT STATION 727B ON LBL 24.75, FOUR EACH CRACKS NOTED, TWO EACH INBD FLANGE, TWO EACH OTBD FLANGE. INSTALLED FLANGE REPAIRS AT RBL 24.75, FOUR EACH SEAT TRACK STATION 727B IAW RES 2009911-12 REV 1R & ECRA 5320 - 02663, SEE ATTACHED COPY.